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API 1104 WELDING OF PIPELINES AND RELATED FACILITIES ETM

HAZIRLAYAN: SERKAN KAYACIK3D INCERTA API 1104 ETM 03/05/2014API 1104 CONTENTS1- GENERAL2- REFERENCED PUBLICATIONS3- DEFINITION OF TERMS4- SPECIFICATIONS5- QUALIFICATION OF WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVES6- QUALIFICATION OF WELDERS7- DESIGN AND PREPARATION OF A JOINT FOR PRODUCTION WELDING8- INSPECTION AND TESTING OF PRODUCTION WELDS9- ACCEPTANCE STANDARDS FOR NONDESTRUCTIVE TESTING2API 1104 CONTENTS10- REPAIR AND REMOVAL OF DEFECTS11- PROCEDURES FOR NONDESTRUCTIVE TESTING12- MECHANIZED WELDING WITH FILLER METAL ADDITIONS13- AUTOMATIC WELDING WITHOUR FILLER METAL ADDITIONS14- APPENDIXES15- TABLES3SCOPEThis standard covers the gas and arc welding of butt, fillet and socket welds in carbon and low-alloy steel piping used in the compression, pumping, and transmission of crude petroleum, petroleum products, fuel gases, carbon dioxide, nitrogen and , where applicable, covers welding on distrubition systems. It applies to both new construction and in service welding.4SPECIFICATIONS1- EQUIPMENT :Welding equipment, both gas and arc, shall be of a size and type suitable for the work and shall be maintained in a condition that ensures acceptable welds, continuity of operation, and safety of personnel.2- MATERIAL : 2-1- PIPES AND FITTINGS: a-) API 5Lb-) ASTM SPECIFICATIONS5SPECIFICATIONS2-2- FILLER METAL: 2.2.1 TYPE AND SIZE :AWS A5.1AWS A5.2AWS A5.5AWS A5.17AWS A5.18AWS A5.20AWS A5.28AWS A5.29Filler metals that do not conform to the specifications above may be used provided the welding proceduresinvolving their use are qualified.6SPECIFICATIONS2.2.2 STORAGE AND HANDLING OF FILLER METALS AND FLUXES :Filler metals and fluxes shall be stored and handled to avoid damage to them and to the containersin which they are shipped.

2-3- SHIELDING GASES :Atmospheres for shielding an arc are of several typesand may consist of inert gas, active gases, or mixtures of inert and active gases.7WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVESWelding procedures shall include below informations:1- Process2- Pipe and Fitting Materials3- Diameters and Wall Thicknesses4- Joint Design5- Filler Metal and Number of Beads6- Electrical Characteristics7- Flame Characteristics8- Position9- Direction of Welding8WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVES10- Time between Pases11- Type and removal of Lineup Clamp12- Cleaning and/or Grinding13- Pre- and Post-Heat Treatment14- Shielding Gas and Flow Rate15- Shielding Flux16- Speed of Travel9WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVESTESTING OF WELDED BUTT JOINTS:

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WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVES11

WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVES12

WELDING PROCEDURES FOR WELDS CONTAINING FILLER METAL ADDITIVES13

QUALIFICATION OF WELDERS14

QUALIFICATION OF WELDERS15

DESIGN AND PREPARATION OF A JOINT FOR PRODUCTION WELDING16ALIGNMENT:The alignment of a butting ends shall minimize the offset between surfaces. For pipe ends of the same nominal thickness, the offset should not exceed 3mm.

FILLER AND FINISH BEADS:At no point shall the crown surface fall below the outside surface of the pipe, nor should it be raised above the parent matel by more than 1,6mm.Two beads shall not started at the same location. The face of the completed weld should be approximately 3mm wider than the width of the original groove.

INSPECTION AND TESTING OF PRODUCTION WELDS17Production welds may be inspected by using below nondestructive methods;1- Radiographic Test2- Ultrasonic Test3- Magnetic Particul Test4- Penetrant TestThe personnel who performs above tests shall be certified in accordance with ASNT-TC-1A. Only Level II or Level III personnel shall interpret the test results.Level I and II personnel shall be recertified every 3 years and Level III personnel shall be certified every 5 years.All results shall be evaluated in accordance with acceptance standards mentioned in section 9 of this standard. REPAIR AND REMOVAL OF DEFECTS18A qualified repair procedure shall be established to repair or remove the defects where the repair process is different than the first process.

Repair procedure, as a minimum, shall include;Method of Exploration of the defectMethod of defect removalThe repair groove shall be examined to confirm complete removal of defect.Requirements for preheat and interpass heat treatmentWelding processes and other specification informationRequirement for interpass nondestructive testing

19EN 1090-2 ELiK YAPI UYGULAMALARI ELK YAPILAR N TEKNK GEREKLLKLER

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